OptionaladdressOptional network address peers use to reach this node.
Whether the sender believes this node is currently alive.
Unique node identifier.
Monotonic version counter; a higher value supersedes an older view of the same node.
OptionalmetadataOptional free-form string metadata (e.g. capabilities, version).
OptionalregionOptional geographic or logical region the node belongs to.
A single node's state as carried in a GossipMessage.
Remarks
The wire form of NodeInfo augmented with the two fields the anti-entropy protocol reconciles on: a monotonic
incarnation(higher wins) and analiveflag (at equal incarnation, dead beats alive).